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Old Oct 27, 2025 | 09:21 AM
  #1  
acavagnaro's Avatar
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Plug wires

I recently dropped a Remmel built 455 into my '69 442 and decided to upgrade the plug wires. I used an old set on the engine for dyno and break-in but finally got around to replacing them. I looked at a lot of different brands and decided to search this site one day and found a recommendation by flemming for Scott wires. Looked into them and just installed a set this weekend.
Scott Performance Wire - High Performance Spark Plug Wires
I can't say enough good things about these wires. Excellent quality. Pricey but not any more than the higher priced wires from companies like Accel, MSD, etc. Check them out if you're in the market for new wires. These aren't fully assembled, 'one size fits all' wires or even Olds-specific. They're general length so be prepared to finish them for your application.
Old Oct 27, 2025 | 09:48 AM
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OLDSter Ralph's Avatar
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I have found that Fleming's product recommendations are reliable and accurate.
Old Oct 27, 2025 | 09:56 AM
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If you're into judging and correctness, Fusick has reproduction, correct date-coded wire sets, plus they're already cut to correct lengths.
They look great on my Toro.
Old Oct 27, 2025 | 10:03 AM
  #4  
OLDSter Ralph's Avatar
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Originally Posted by torotoyguy
If you're into judging and correctness, Fusick has reproduction, correct date-coded wire sets, plus they're already cut to correct lengths.
They look great on my Toro.
Thats nice to know.


Old Oct 27, 2025 | 10:07 AM
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droldsmorland's Avatar
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Taylor Spiral Core 8MMs
Lectric Limited is a little less.
The only other way around the madness is chineasuim, and I would rather toss money into my fireplace.
I cannot believe the cost of a lousy set of wires! Where/When will the adness end? When I croak.
Old Oct 27, 2025 | 10:16 AM
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Yes, Fusick (and others) offer reproductions of the original wires. Those will work if you're running the stock ignition with points/coil. However, HEI and a performance build push you in a different direction.
Old Oct 27, 2025 | 10:18 AM
  #7  
acavagnaro's Avatar
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Originally Posted by droldsmorland
Taylor Spiral Core 8MMs
Lectric Limited is a little less.
The only other way around the madness is chineasuim, and I would rather toss money into my fireplace.
I cannot believe the cost of a lousy set of wires! Where/When will the adness end? When I croak.
From what I found, Taylor is now offshored. The Scott wires are made in the US. Sealed the deal for me.
Old Oct 28, 2025 | 06:39 AM
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Scott did have an Olds specific set available, but i think the guy that helped get them done left. The guy i spoke to down there was pretty clueless. I'd probably call Travato for the next set. But, yes, they are very nice, US made, and not much more than the popular brands.
Old Oct 28, 2025 | 07:56 AM
  #9  
70sgeek's Avatar
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I recently looked at these before ultimately going with a new set of MSD 8.5mm in black - they as well required finishing to desired lengths for install but perform flawlessly on my 350 roller cam motor (which Mark also built).

My biggest concern with going with a 10mm wire was whether the cap connections would all fit - I have the small points-style HEI cap on my Pertronix Ignitor II distributor and the 8.5mm wire ends leave essentially no wiggle room once fully seated onto the cap.

Last edited by 70sgeek; Oct 28, 2025 at 07:59 AM.
Old Oct 28, 2025 | 08:03 AM
  #10  
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Were those 8mm spark plug wires you used? It seems that they offer high performance spark plug wires too.
Old Oct 28, 2025 | 08:22 AM
  #11  
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Originally Posted by 70sgeek
I recently looked at these before ultimately going with a new set of MSD 8.5mm in black - they as well required finishing to desired lengths for install but perform flawlessly on my 350 roller cam motor (which Mark also built).

My biggest concern with going with a 10mm wire was whether the cap connections would all fit - I have the small points-style HEI cap on my Pertronix Ignitor II distributor and the 8.5mm wire ends leave essentially no wiggle room once fully seated onto the cap.
This is a standard MSD cap on an 8566.

Old Oct 29, 2025 | 06:08 AM
  #12  
olds 307 and 403's Avatar
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Yeah, I could not believe how much plug wires have gone up in price. I bought 2 sets of ceramic boot plug wires, 500 ohm per foot for $50 each, definitely Accel wires without their name on them, a month back. I actually bought 90 degree white ceramic boots for my discontinued Accel 25 ohm per foot 8.8 wires. Not all plug wires are created equal, I finally threw out the MSD 8.5 Superconductor wires, worthless POS's, were from new. Cracked from heat, boots burnt and two were actually arcing out, wondered why my Dakota would misfire at certain RPM. I do like the Scott wires have an affordable 45 degree boot set, would work well with their 30 ohm per foot set with 90 degree boots.
Old Oct 29, 2025 | 11:09 AM
  #13  
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'72 Cutlass ragtop
 
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For my new MSDs, I also added a set of heat-resistant covers over the boots to help avoid crack/melt-related damages. I've always done that and to my recollection, never had a boot failure for heat-related reasons.

Also, the Thornton shorty headers I'm using on my 350 offer more clearance spacing than the OEM manifolds did, so that helps too.
Old Oct 29, 2025 | 11:52 AM
  #14  
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For a prior discussion take a look here:

Seeking Spark Plug Wire Set Information: "Resistance" - ClassicOldsmobile.com
Old Oct 29, 2025 | 04:23 PM
  #15  
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I've had great luck with the MSD 8.5 Super Conductor wires on my cars and all the cars I've worked on and upgraded for others.

They make my Mark Jones built BB Olds run amazing.

I like being able to customize the lengths and route them to my liking.





Old Oct 29, 2025 | 05:31 PM
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Wondering: What is this?



And this?




Last edited by BackInTheGame; Oct 29, 2025 at 05:35 PM. Reason: Readabilty
Old Oct 29, 2025 | 05:50 PM
  #17  
442Dude's Avatar
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Originally Posted by BackInTheGame
Wondering: What is this?



And this?

That's a reflection in the chrome alternator fan.....😉
Old Oct 29, 2025 | 06:22 PM
  #18  
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Originally Posted by 442Dude
That's a reflection in the chrome alternator fan.....😉
Holy smokes; look at that!!! Quite the shine & reflection!!!!
Old Oct 29, 2025 | 07:24 PM
  #19  
70sgeek's Avatar
'72 Cutlass ragtop
 
Joined: Jun 2016
Posts: 1,321
From: Tampa, FL
I ran my wires over the top to keep them away from the manifolds but if there's a next time, I may try routing them across the valve covers at that point - still have some other wiring housekeeping to do but I'll get there...




Last edited by 70sgeek; Oct 29, 2025 at 07:28 PM.
Old Oct 29, 2025 | 07:38 PM
  #20  
olds 307 and 403's Avatar
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Shiny! I like the lower resistance bigger diameter wires, unless the resistance is obsessive, might not make a difference. To be fair, those Superconductor wires were 15 years old but weren't great from new, overheated multiple times, had the number one wire crack twice on my 403 that ran hot, should have just thrown them out. I preferred the Accel wires before the buyout. My 25 ohm set is one the last sets sold. We'll half due to an engine fire burning half. I had a 15 year old set, were popping off the plug wires. I picked up 90 degree white ceramic boots. 30 years back, Accel wires were junk. Curious where these US made wires sourced the materials to build them from? They look good but so did the MSD wires when I bought them.
Old Oct 29, 2025 | 07:47 PM
  #21  
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Originally Posted by torotoyguy
If you're into judging and correctness, Fusick has reproduction, correct date-coded wire sets, plus they're already cut to correct lengths.
They look great on my Toro.
I tried these OK for show but did not perform well ran at night in the bark some illumination, went to AC Delco wires runs better and still OEM


Fred
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